Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
1/*
2 * linux/drivers/mfd/mcp.h
3 *
4 * Copyright (C) 2001 Russell King, All Rights Reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License.
9 */
10#ifndef MCP_H
11#define MCP_H
12
13#include <mach/dma.h>
14
15struct mcp_ops;
16
17struct mcp {
18 struct module *owner;
19 struct mcp_ops *ops;
20 spinlock_t lock;
21 int use_count;
22 unsigned int sclk_rate;
23 unsigned int rw_timeout;
24 dma_device_t dma_audio_rd;
25 dma_device_t dma_audio_wr;
26 dma_device_t dma_telco_rd;
27 dma_device_t dma_telco_wr;
28 struct device attached_device;
29 int gpio_base;
30};
31
32struct mcp_ops {
33 void (*set_telecom_divisor)(struct mcp *, unsigned int);
34 void (*set_audio_divisor)(struct mcp *, unsigned int);
35 void (*reg_write)(struct mcp *, unsigned int, unsigned int);
36 unsigned int (*reg_read)(struct mcp *, unsigned int);
37 void (*enable)(struct mcp *);
38 void (*disable)(struct mcp *);
39};
40
41void mcp_set_telecom_divisor(struct mcp *, unsigned int);
42void mcp_set_audio_divisor(struct mcp *, unsigned int);
43void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
44unsigned int mcp_reg_read(struct mcp *, unsigned int);
45void mcp_enable(struct mcp *);
46void mcp_disable(struct mcp *);
47#define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate)
48
49struct mcp *mcp_host_alloc(struct device *, size_t);
50int mcp_host_register(struct mcp *);
51void mcp_host_unregister(struct mcp *);
52
53struct mcp_driver {
54 struct device_driver drv;
55 int (*probe)(struct mcp *);
56 void (*remove)(struct mcp *);
57 int (*suspend)(struct mcp *, pm_message_t);
58 int (*resume)(struct mcp *);
59};
60
61int mcp_driver_register(struct mcp_driver *);
62void mcp_driver_unregister(struct mcp_driver *);
63
64#define mcp_get_drvdata(mcp) dev_get_drvdata(&(mcp)->attached_device)
65#define mcp_set_drvdata(mcp,d) dev_set_drvdata(&(mcp)->attached_device, d)
66
67#define mcp_priv(mcp) ((void *)((mcp)+1))
68
69#endif